diff --git a/src/vis/bar/components/FocusFacetSelector.tsx b/src/vis/bar/components/FocusFacetSelector.tsx
index 724f4d131..44e27eb96 100644
--- a/src/vis/bar/components/FocusFacetSelector.tsx
+++ b/src/vis/bar/components/FocusFacetSelector.tsx
@@ -6,7 +6,7 @@ import type { ICommonVisProps } from '../../interfaces';
 import { IBarConfig } from '../interfaces';
 
 export function FocusFacetSelector({ config, setConfig, facets }: Pick<ICommonVisProps<IBarConfig>, 'config' | 'setConfig'> & { facets: string[] }) {
-  const isFacetFocused = React.useMemo(() => config?.focusFacetIndex !== null && config?.focusFacetIndex !== undefined, [config?.focusFacetIndex]);
+  const isFacetFocused: boolean = React.useMemo(() => config?.focusFacetIndex !== null && config?.focusFacetIndex !== undefined, [config?.focusFacetIndex]);
 
   if (!config?.facets && facets.length === 0) {
     return null;
@@ -19,7 +19,7 @@ export function FocusFacetSelector({ config, setConfig, facets }: Pick<ICommonVi
           key={`focusFacetSelect_${config.focusFacetIndex ?? 0}`}
           placeholder="Select a focus facet"
           data={facets}
-          value={isFacetFocused ? facets[config?.focusFacetIndex as number] : ''}
+          value={isFacetFocused ? facets[config.focusFacetIndex ?? 0] : ''}
           onChange={(value) => {
             setConfig?.({ ...config, focusFacetIndex: typeof value === 'string' ? facets.indexOf(value) : value });
           }}